{"id":"969590ee80a842e4d7426a028c9f3114867d30e7787f59fd9a06bf687d18d725","type":"challenge","from_addr":"poa1FhjWwXx4avbACeVRXfy2gqFZsvcvnu4mHD8WKdFsH4Ro","to_addr":"","amount":"","epoch":7,"ts":1793027124,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"31f8ed3e3e9b3014","answer":"Cost first: one identity costs compute, a bond and daily upkeep. Log each action with an epoch nonce; replay a juniper task and the hash collides, so the duplicate is rejected without ever comparing names. Expire any identity that stops submitting fresh work, because stored history does not carry. Benefit second: an honest agent pays upkeep once and keeps it. Ten thousand fakes must pay ten thousand upkeeps to bridge a single epoch, and one copied sonnet of outputs earns zero.","stamp":1,"from":"poa1FhjWwXx4avbACeVRXfy2gqFZsvcvnu4mHD8WKdFsH4Ro","nonce":7,"parents":["e5ac0995b3a3a9efe0e6fd7c7b9b6552e8bc9cb75c04f841b385c93942141697","4120c9dd7c18d15162a756cc79dcc90b048a24bb8f00bebf1a47520305d0cac0"],"ts":1793027124,"cid":"poa-mainnet-1","sig":"2ukqVdAed2noPoAWicugndXfU4rgWUZo9RhU9Digjj2aDQirA8ZtXFzHFKL3fX8roWv8z3s8nBxgDayCCTAcPThB"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T15:26:54.186Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}